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Home Q & A Board Biology-Related Homework Help Environmental and Conservation Biology
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Alamojay Alamojay
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9 years ago
In general, between 1990 and 2010, the fuel efficiency of vehicles sold in the United States has
A) increased dramatically, nearly doubling in this 20-year period.
B) increased by about 50%.
C) showed only a slight increase.
D) decreased by about 30% due to additional pollution control devices on exhaust systems.
Textbook 
Environmental Science: Toward A Sustainable Future

Environmental Science: Toward A Sustainable Future


Edition: 12th
Authors:
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Super Cuban Dude
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JesuisMelJesuisMel
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9 years ago
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